Integrated cylinder head cover

Abstract

The invention discloses an integrated cylinder head cover, and belongs to the technical field of cylinder head covers. The device comprises an air cylinder top cover, a connecting pipe is installed on the air cylinder top cover, and the two ends of the connecting pipe are both installed on an intercooling pipe; the air inlet assembly is installed on the peripheral side of the connecting pipe, when the connecting pipe is in a normal state, the air inlet assembly is not communicated with the connecting pipe, and when the internal pressure of the connecting pipe exceeds a preset value, the air inlet assembly is communicated with the connecting pipe; the self-suction mechanism is installed on the air cylinder top cover, the self-suction mechanism is provided with a communicating end, a suction end and an exhaust end, and the suction end is communicated with an inner cavity of a supercharged engine crankcase. Through cooperation of the self-suction mechanism and the air inlet assembly, when the supercharged engine is in a high load, the internal pressure of the crankcase can be controlled within a proper interval, and the problems that engine oil leaks and engine power is increased due to the fact that the pressure of the crankcase is too high are solved.

Description

Technical Field

[0001] This invention relates to the field of cylinder head cover technology, and particularly to an integrated cylinder head cover. Background Technology

[0002] During engine operation, high-pressure combustion exhaust gases from the cylinders can seep into the crankcase through the gap between the piston rings and the cylinder walls, creating what's known as "blow-by." Blow-by increases the pressure inside the crankcase, causing oil leaks, increasing engine drag, and the unburned hydrocarbons it contains can pollute the environment. To address this, modern engines are equipped with a crankcase ventilation system. This system uses the vacuum created by the intake system to direct the blow-by gases into the intake manifold and then into the combustion chamber for secondary combustion, thus maintaining pressure balance within the crankcase.

[0003] For traditional naturally aspirated engines, the intake manifold provides a stable vacuum source under most operating conditions, sufficient to effectively extract blow-by gases. However, for turbocharged or supercharged engines (hereinafter referred to as "supercharged engines"), their operating characteristics pose a serious challenge to crankcase ventilation: when the supercharger engages, the intake manifold becomes positive pressure, losing its ability to act as a vacuum source. At this time, the system can only rely on the vacuum source provided by the intake piping before the supercharger and after the air filter, but the vacuum level at these points is relatively low. Under high engine load, it is difficult to extract blow-by gases from the crankcase, which may lead to excessively high crankcase pressure. This not only easily causes weak points such as the front and rear crankshaft oil seals and valve cover gaskets to be "push open" under high pressure, resulting in oil leakage, but also causes excessively pressurized gases to attempt to escape through any possible gaps, increasing the resistance to piston downward movement and consuming engine power.

[0004] Therefore, this application provides an integrated cylinder head cover to address the shortcomings of existing designs. Summary of the Invention

[0005] This invention provides an integrated cylinder head cover, which can solve the problem in the prior art that when the turbocharger in a turbocharged engine is engaged, it is difficult to extract blow-by gas from the crankcase, resulting in excessive pressure in the crankcase of the turbocharged engine.

[0006] An integrated cylinder head cover, comprising: A cylinder top cover, on which a connecting pipe is installed, with both ends of the connecting pipe mounted on an intercooler pipe; An intake assembly is installed on the outer periphery of the connecting pipe. Under normal conditions, the intake assembly is not connected to the connecting pipe. When the internal pressure of the connecting pipe exceeds a predetermined value, the intake assembly remains connected to the connecting pipe. The self-suction mechanism is installed on the cylinder top cover. The self-suction mechanism has a connecting end, a suction end and an exhaust end. The suction end is connected to the crankcase cavity of the turbocharged engine, the connecting end is connected to the intake assembly, and the exhaust end is connected to the intake pipe of the turbocharged engine. When the gas inside the intake assembly flows into the self-suction mechanism, the suction end draws the blow-by gas from the crankcase cavity into the self-suction mechanism and discharges it into the intake pipe.

[0007] Furthermore, a connecting cover is installed on the cylinder top cover, and a wind cavity is formed between the connecting cover and the cylinder top cover. When the cylinder top cover is installed on the turbocharged engine, the wind cavity is connected to the crankcase. The self-suction mechanism is installed on the connecting cover and the suction end is connected to the wind cavity.

[0008] Furthermore, the self-suction mechanism includes a mounting base installed on the connecting cover. The mounting base has a suction hole communicating with the air chamber. The mounting base also has an air inlet hole communicating with one end of the suction hole. One end of the air inlet hole is connected to a connecting pipe communicating with the air intake assembly. The other end of the air inlet hole is connected to the air intake pipe. When high-pressure gas passes through the air inlet hole, the suction hole generates suction to draw out the gas in the air chamber.

[0009] Furthermore, the air inlet includes an insertion hole on the mounting base, one end of the connecting pipe is installed on the insertion hole, the mounting base has a tapered conical opening coaxially connected to one end of the insertion hole, the end of the mounting base away from the insertion hole has a tapered hole coaxially connected to the tapered conical opening, the mounting base has a narrow hole coaxially connected to the tapered conical opening and the tapered hole, the inner diameter of the narrow hole is smaller than the minimum inner diameter of the tapered conical opening and the tapered hole, the narrow hole is smoothly connected to the tapered conical opening and the tapered hole, so as to form a funnel shape at the connection between the narrow hole and the corresponding pipe, and one end of the suction hole is connected to the inner circumference of the narrow hole.

[0010] Furthermore, the mounting base is connected to a mounting cylinder that communicates with the conical hole. An oil-gas separation component is installed inside the mounting cylinder. The connecting end of the mounting cylinder is used to communicate with the air inlet pipe. The mixed gas discharged from the conical hole passes through the oil-gas separation component to discharge the separated gas into the air inlet pipe.

[0011] Furthermore, the mounting cylinder is vertical with a connecting end at the top. The oil-gas separation assembly includes an oil supply pipe connected to the bottom end of the mounting cylinder. One end of the oil supply pipe is connected to the turbocharged engine oil tank. A conversion cylinder with one side connected to a conical hole is installed inside the mounting cylinder. The bottom of the conversion cylinder is open, and its outer circumference forms an annular cavity with the inner circumference of the mounting cylinder. A spiral plate is constructed inside the annular cavity. A hollow rotating tube with an open top is vertically rotatably installed at the bottom opening of the conversion cylinder. An arc-shaped wind plate is connected to the outer circumference of the rotating tube. An air cavity connected to the arc-shaped wind plate is constructed inside the arc-shaped wind plate. Multiple exhaust holes are evenly opened at the end of the arc-shaped wind plate away from the axis of the rotating tube. A driving component for driving the rotating tube to rotate is installed on the conversion cylinder.

[0012] Furthermore, an opening and closing component is provided at the connection between the oil pipeline and the mounting cylinder. When the rotating pipe rotates, the opening and closing component blocks the connection between the oil pipeline and the mounting cylinder. When the rotating pipe stops rotating, the opening and closing component keeps the oil pipeline and the mounting cylinder connected.

[0013] Furthermore, the opening and closing assembly includes a connecting frame installed inside the oil pipeline. An inverted frustum-shaped sealing block is elastically and vertically slidably installed inside the connecting frame. The inclined surface of the sealing block contacts the connection between the oil pipeline and the mounting cylinder. A setting cavity is constructed inside the sealing block. An annular plate is coaxially constructed on the bottom surface of the setting cavity. A forcing inclined surface is opened on the inner circumference of the annular plate. A reserved cavity is opened along the lower inner edge of the forcing inclined surface in the setting cavity. An L-shaped forcing frame plate is slidably installed in a circular array at the bottom end of the rotating pipe. The horizontal free end of the forcing frame plate is an inclined surface, which is used to contact the forcing inclined surface.

[0014] Furthermore, a through groove communicating with the air cavity is provided on one side of the connecting cover. The bottom surface of the air cavity is inclined, and the lowest end of the inclined surface is connected to the through groove. A collection box with an open top is installed in the through groove. An insertion cavity communicating with the suction hole is constructed inside the mounting base. A filter screen is detachably inserted into the insertion cavity.

[0015] Furthermore, the air intake assembly includes a shut-off valve connected to the outer periphery of the connecting pipe, one end of the shut-off valve being connected to an air supply pipe, and the free end of the air supply pipe being connected to one end of the connecting pipe.

[0016] Beneficial effects: This invention, through the cooperation of a self-suction mechanism and an intake assembly, can control the internal pressure of the crankcase within a suitable range under high load conditions in a turbocharged engine, preventing problems such as excessive crankcase pressure leading to oil leakage and increased engine power. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 First partial three-dimensional sectional view; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged view of the structure at point B in the middle; Figure 5 For the present invention Figure 1 Second partial three-dimensional sectional view; Figure 6 For the present invention Figure 5 Enlarged view of the structure at point C; Figure 7 For the present invention Figure 1 Third partial sectional view; Figure 8 For the present invention Figure 1 Fourth partial stereoscopic sectional view; Figure 9 For the present invention Figure 1 Another perspective illustration.

[0018] Explanation of reference numerals in the attached figures: 1. Cylinder top cover; 2. Connecting pipe; 3. Intake assembly; 301. Cut-off valve; 302. Air supply pipe; 4. Self-suction mechanism; 401. Mounting base; 402. Suction hole; 403. Air inlet; 4031. Insertion hole; 4032. Tapered conical inlet hole; 4033. Tapered hole; 4034. Narrow hole; 404. Connecting pipe; 5. Connecting cover; 6. Air chamber; 7. Mounting cylinder; 8. Oil-gas separation assembly; 801. Oil supply pipe; 802. Conversion cylinder; 803. Rotating pipe; 804. Arc-shaped air vane; 8 05. Air chamber; 806. Annular cavity; 807. Spiral plate; 808. Exhaust port; 9. Driving component; 10. Opening and closing assembly; 1001. Connecting frame; 1002. Sealing block; 1003. Setting cavity; 1004. Annular plate; 1005. Forcing inclined surface; 1006. Reserved cavity; 1007. Forcing frame plate; 11. Through groove; 12. Inclined surface; 13. Collection box; 14. Insertion cavity; 15. Filter screen; 16. Through hole; 17. Frame; 18. Column; 19. Baffle; 20. Baffle plate. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] like Figures 1 to 9 As shown, an integrated cylinder head cover provided in an embodiment of the present invention includes: A cylinder head cover 1 is provided, on which a connecting pipe 2 is mounted. Both ends of the connecting pipe 2 are mounted on an intercooler pipe. It should be noted that the intercooler pipe is a standard component in the intake systems of existing turbocharged or supercharged engines. Its core function is to deliver high-pressure, low-temperature, clean air that has been compressed by the turbocharger and cooled by the intercooler for engine combustion. In this invention, the connecting pipe 2 serves as a section of the intercooler pipe, and the connecting pipe 2 is bolted to the intercooler pipe. The intake assembly 3 is installed on the outer periphery of the connecting pipe 2. Under normal conditions, the intake assembly 3 is not connected to the connecting pipe 2. When the internal pressure of the connecting pipe 2 exceeds a predetermined value, the intake assembly 3 is connected to the connecting pipe 2. The self-suction mechanism 4 is installed on the cylinder top cover 1. The self-suction mechanism 4 has a connecting end, a suction end, and an exhaust end. The suction end is connected to the crankcase cavity of the turbocharged engine, the connecting end is connected to the intake assembly 3, and the exhaust end is connected to the intake pipe of the turbocharged engine. When gas flows into the self-suction mechanism 4 from inside the intake assembly 3, the suction end draws the blow-by gas from the crankcase cavity into the self-suction mechanism 4 and discharges it into the intake pipe. It should be noted that the intake pipe in this invention refers to the intake pipe in a turbocharged engine in the prior art, specifically the intake pipe located after the air filter and before the compressor inlet of the turbocharger. This section of the pipe is located within the turbocharger... Upstream, its internal pressure is lower than or equal to atmospheric pressure during turbocharged engine operation, possessing a certain negative pressure. Therefore, it can receive the mixed gas discharged from the self-suction mechanism 4, and rely on this inherent pressure difference to ensure smooth airflow. Finally, after passing through the turbocharger and intercooler, it is sent into the engine combustion chamber. Preferably, a one-way valve is installed at the connection between the exhaust end and the intake pipe to prevent gas backflow. This cylinder head cover 1 is installed on the turbocharged engine to replace the existing cylinder head cover. Under low load conditions, such as idling or low-speed driving, the pressure in the connecting pipe 2 is lower than a predetermined value. This predetermined value refers to the pressure inside the intercooler pipe of the existing turbocharged engine under normal load conditions. The pressure value refers to the turbocharger's state at which it is not engaged or only slightly engaged. The intake manifold is under negative pressure, allowing blow-by gas from the crankcase to be discharged normally. However, when the turbocharged engine is under high load, such as during sudden acceleration or hill climbing, the turbocharger engages, and the intake manifold becomes under positive pressure, reducing or eliminating its suction capacity. At this time, the high-pressure gas from the intercooler gradually increases, causing the intake manifold pressure to exceed a predetermined value. This pressure then forces some airflow from the intercooler into the intake assembly 3. Because the self-suction mechanism 4 is connected to the intake assembly 3, it causes... High-pressure gas enters the self-suction mechanism 4. After passing through the self-suction mechanism 4, the high-pressure gas is discharged from the exhaust end. During this process, suction is generated in the suction end. Because the suction end is connected to the crankcase cavity, it will draw the blow-by gas in the crankcase into the self-suction mechanism 4, so that the blow-by gas mixes with the high-pressure gas in the intercooler pipe to form a mixed gas. The mixed gas flows from the exhaust end into the intake manifold of the turbocharged engine and finally enters the engine combustion chamber for combustion. This allows the turbocharged engine to control the internal pressure of the crankcase within a suitable range under high load, preventing the crankcase pressure from being too high, which could lead to oil leakage and increased engine power.

[0021] like Figures 1 to 6As shown, in some embodiments, a connecting cover 5 is installed on the cylinder head cover 1, and a wind chamber 6 is formed between the connecting cover 5 and the cylinder head cover 1. When the cylinder head cover 1 is installed on the turbocharged engine, the wind chamber 6 is connected to the crankcase. The self-suction mechanism 4 is installed on the connecting cover 5 and its suction end is connected to the wind chamber 6. That is to say, when the suction end of the self-suction mechanism 4 directly draws the gas in the wind chamber 6, and the wind chamber 6 is connected to the crankcase, the blow-by gas in the crankcase will be directly extracted when the self-suction mechanism 4 is operating.

[0022] like Figures 1 to 3 As shown, in some embodiments, the self-suction mechanism 4 includes a mounting base 401 mounted on the connecting cover 5. The mounting base 401 has a suction hole 402 communicating with the air cavity 6. The mounting base 401 has an air inlet hole 403 communicating with one end of the suction hole 402. One end of the air inlet hole 403 is connected to a connecting pipe 404 communicating with the air intake assembly 3. The other end of the air inlet hole 403 is connected to the air intake pipe. When high-pressure gas passes through the air inlet hole 403, the suction hole 402 generates suction to draw out the gas in the air cavity 6. That is, after the air intake assembly 3 is in a state of communication with the connecting pipe 2, high-pressure gas will pass through the air inlet hole 403. During this process, the suction hole 402 will automatically generate suction. It can complete the suction and discharge of the gas in the air cavity 6 without external driving force or pump body. It does not require manual control when the car is in motion, making it more convenient to use.

[0023] like Figures 1 to 3 As shown, in some embodiments, the air inlet 403 includes an insertion hole 4031 formed on the mounting base 401, one end of the connecting pipe 404 is installed on the insertion hole 4031, the mounting base 401 has a tapered conical opening 4032 coaxially communicating with one end of the insertion hole 4031, and the end of the mounting base 401 away from the insertion hole 4031 has a tapered opening 4033 coaxial with the tapered conical opening 4032. A narrow hole 4034 is provided, coaxially connected to the tapered orifice 4032 and the tapered orifice 4033. The inner diameter of the narrow hole 4034 is smaller than the minimum inner diameter of the tapered orifice 4032 and the tapered orifice 4033. The narrow hole 4034 is smoothly connected to the tapered orifice 4032 and the tapered orifice 4033, forming a funnel shape at the connection between the narrow hole 4034 and the corresponding pipe. One end of the suction hole 402 is connected to the inner circumferential side of the narrow hole 4034. That is to say, if... Figure 3As shown, the conical orifice 4032, the narrow orifice 4034, and the conical orifice 4033 form a Venturi structure. High-pressure gas flows sequentially from the insertion hole 4031 into the conical orifice 4032, the narrow orifice 4034, and the conical orifice 4033. When the high-pressure gas passes through the narrow orifice 4034, the flow velocity increases, and the pressure decreases, forming a negative pressure. This causes the suction hole 402 to generate an upward suction force, thereby mixing the blow-by gas inside the crankcase with the high-pressure gas and discharging it into the air inlet pipe.

[0024] like Figures 1 to 3 As shown, in some embodiments, the mounting base 401 is connected to a mounting cylinder 7 that communicates with a conical hole 4033. An oil-gas separation component 8 is installed inside the mounting cylinder 7. The connecting end of the mounting cylinder 7 is used to communicate with the air intake pipe. The mixed gas discharged from the conical hole 4033 passes through the oil-gas separation component 8 to discharge the separated gas into the air intake pipe. Blow-by gas is an incompletely combusted exhaust gas mixture that leaks from the high-pressure combustion chamber into the low-pressure crankcase. It contains a certain amount of engine oil. Therefore, when the blow-by gas enters the mounting cylinder 7 after mixing with the high-pressure gas (commonly known as mixed gas), the engine oil in the mixed gas will be separated by the oil-gas separation component 8. The separated engine oil can be reused as fuel in the fuel tank to improve the utilization rate of engine oil. In other words, compared with the existing turbocharged engine, it is more fuel-efficient when in use.

[0025] like Figures 1 to 3As shown, in some embodiments, the mounting cylinder 7 is vertical with a connecting end at the top. The oil-gas separation assembly 8 includes an oil supply pipe 801 connected to the bottom end of the mounting cylinder 7. One end of the oil supply pipe 801 is connected to the turbocharged engine oil tank. A conversion cylinder 802 with one side connected to the conical hole 4033 is installed inside the mounting cylinder 7. The bottom of the conversion cylinder 802 is open, and its outer circumference forms an annular cavity 806 with the inner circumference of the mounting cylinder 7. A spiral plate 807 is constructed inside the annular cavity 806. A hollow rotating tube 803 with an open top is vertically rotatably mounted at the bottom opening of the conversion cylinder 802. An arc-shaped air vane 804 is connected to the outer periphery of the rotating pipe 803. The arc-shaped air vane 804 has an internal air chamber 805 communicating with the rotating pipe 803. Multiple exhaust holes 808 are evenly distributed at the end of the arc-shaped air vane 804 away from the axis of the rotating pipe 803. A driving component 9 for driving the rotating pipe 803 is installed on the conversion cylinder 802. Specifically, the driving component 9 includes a small motor mounted on the top of the conversion cylinder 802. A cover is installed on the top of the conversion cylinder 802 to cover the small motor. That is, the mixed gas directly enters the conversion cylinder 802 from the conical hole 4033 because the bottom of the conversion cylinder 802 is rotatably mounted... Because of the rotating pipe 803, the mixed gas directly enters the rotating pipe 803. Since the rotating pipe 803 is continuously rotating under the action of the driving component 9, the mixed gas is thrown from the multiple exhaust holes 808 of the arc-shaped wind vane 804 onto the inner wall of the mounting cylinder 7 under centrifugal force. This causes the oil in the mixed gas to adhere to the inner wall of the mounting cylinder 7. As the oil accumulates on the inner wall of the mounting cylinder 7, it flows into the oil supply pipe 801 under gravity, thus entering the oil tank for easy collection of the oil in the mixed gas. Meanwhile, the high-pressure gas flowing out from the exhaust holes 808 flows vertically upwards because of the arc-shaped wind vane 804. The structural design of section 4 enables it to function similarly to a fan during rotation, thereby facilitating the upward flow of the separated high-pressure gas. As the high-pressure gas flows upward, it enters the annular cavity 806, where the annular cavity 806 and the spiral plate 807 form a spiral groove. This increases the time the high-pressure gas spends within the annular cavity 806, further separating the oil from the high-pressure gas and improving the oil-gas separation effect. Finally, the separated gas flows through the annular cavity 806 and into the top connecting end of the mounting cylinder 7. Because the connecting end is connected to the intake pipe, the separated gas is directly discharged into the intake pipe, preventing any waste of oil.

[0026] like Figures 2 to 4As shown, in some embodiments, an opening and closing assembly 10 is provided at the connection between the oil supply pipe 801 and the mounting cylinder 7. When the rotating pipe 803 rotates, the opening and closing assembly 10 blocks the connection between the oil supply pipe 801 and the mounting cylinder 7. When the rotating pipe 803 stops rotating, the opening and closing assembly 10 keeps the oil supply pipe 801 and the mounting cylinder 7 connected. The design of the opening and closing assembly 10 is such that when the rotating pipe 803 rotates, the mounting cylinder 7 has a vertically upward airflow. To prevent the oil in the oil tank from being drawn into the mounting cylinder 7 due to negative pressure, the rotating pipe 803 rotates when the turbocharged engine is under load, and the mounting cylinder 7 contains high-pressure gas. At this time, the opening and closing assembly 10 keeps the oil supply pipe 801 and its mounting cylinder 7 disconnected. When the turbocharged engine is not under load, the mounting cylinder 7 does not have high-speed flowing gas, so the rotating pipe 803 will not rotate, thereby draining the oil above the opening and closing assembly 10 into the oil supply pipe 801.

[0027] like Figures 2 to 4 As shown, in some embodiments, the opening and closing assembly 10 includes a connecting frame 1001 installed inside the oil pipe 801. A frustum-shaped sealing block 1002 is elastically and vertically slidably installed inside the connecting frame 1001. Specifically, the sealing block 1002 has a rod at its bottom, and a spring connects the rod to the connecting frame 1001. The inclined surface of the sealing block 1002 contacts the connection between the oil pipe 801 and the mounting cylinder 7, meaning the connection between the oil pipe 801 and the mounting cylinder 7 is cone-shaped. A setting cavity 1003 is constructed inside the sealing block 1002. An annular plate 1004 is coaxially constructed on the bottom surface of the setting cavity 1003. A forcing inclined surface 1005 is formed on the inner circumference of the annular plate 1004. A reserved cavity 1006 is formed along the lower inner edge of the forcing inclined surface 1005 in the setting cavity 1003. The bottom end of the rotating pipe 803 slides in a circular array. An L-shaped forcing plate 1007 is installed, with its horizontal free end being an inclined surface that contacts the forcing inclined surface 1005. When the turbocharged engine is not under load, the sealing block 1002 does not block the connection between the oil supply pipe 801 and the mounting cylinder 7, so the oil in the mounting cylinder 7 flows into the oil supply pipe 801. When the turbocharged engine is under load, the rotating pipe 803 rotates, which drives multiple forcing plates 1007 to rotate around the axis of the rotating pipe 803. At this time, under the action of centrifugal force, one end of the horizontal inclined surface of the forcing plate 1007 contacts the forcing inclined surface 1005, thereby forcing the sealing block 1002 to move downward to block the connection between the oil supply pipe 801 and the mounting cylinder 7, thus automatically sealing the connection between the oil supply pipe 801 and the mounting cylinder 7 without the need for additional program control.

[0028] like Figure 6As shown, the blow-by gas carries certain impurities during its flow. To prevent these impurities from clogging the narrow orifice 4034 during prolonged use, a through groove 11 communicating with the air chamber 6 is provided on one side of the connecting cover 5. The bottom surface of the air chamber 6 is an inclined surface 12, and the lowest point of the inclined surface 12 is connected to the through groove 11. A collection box 13 with an open top is installed inside the through groove 11. Because the air chamber 6 is connected to the crankcase, a through hole 16 is provided on the inclined surface 12. That is, the through hole 16 is located on the cylinder top cover. Figure 6 and Figure 9 As shown, in this embodiment, a frame 17 is provided on the through hole 16, and a column 18 is provided on the frame 17. A baffle 19 that blocks the through hole 16 is slidably sleeved on the column 18. The top of the baffle 19 is flush with the inclined surface 12. A baffle plate 20 is constructed on the connecting cover 5 to prevent the baffle 19 from sliding off the column 18. An insertion cavity 14 communicating with the suction hole 402 is constructed inside the mounting base 401. A filter screen 15 is detachably inserted into the insertion cavity 14. When the narrow hole 4034 generates suction, the gas will enter and push up the baffle plate 20, causing the gas to escape. The air flows into the narrow hole 4034 between the baffle 20 and the through hole 16. During this process, the blow-by air passes through the filter screen 15 of the insertion cavity 14, thereby filtering out large impurities. When the turbocharged engine is not under load, the baffle 20 blocks the through hole 16 under the action of gravity, so that the impurities fall onto the inclined surface 12 due to gravity. The baffle 20 can prevent the filtered impurities from falling back into the crankcase from the through hole 16. The impurities enter the collection box 13 along the inclined surface 12, which facilitates the centralized collection of filtered impurities.

[0029] like Figure 1 As shown, in some embodiments, the air intake assembly 3 includes a shut-off valve 301 connected to the outer periphery of the connecting pipe 2. One end of the shut-off valve 301 is connected to an air supply pipe 302. The free end of the air supply pipe 302 is connected to one end of the connecting pipe 404. That is, when the air pressure in the connecting pipe 2 reaches or exceeds a preset value, the shut-off valve 301 automatically opens without additional driving force control, thereby delivering high-pressure gas through the air supply pipe 302 to the connecting pipe 404.

[0030] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An integrated cylinder head cover, characterized in that, include: Cylinder top cover (1), on which a connecting pipe (2) is installed, both ends of which are installed on the intercooler pipe; The intake assembly (3) is installed on the outer periphery of the connecting pipe (2). Under normal conditions, the intake assembly (3) is not connected to the connecting pipe (2). When the internal pressure of the connecting pipe (2) exceeds the preset value, the intake assembly (3) is connected to the connecting pipe (2). The self-suction mechanism (4) is installed on the cylinder top cover (1). The self-suction mechanism (4) has a connecting end, a suction end and an exhaust end. The suction end is connected to the crankcase cavity of the turbocharged engine, the connecting end is connected to the intake assembly (3), and the exhaust end is connected to the intake pipe of the turbocharged engine. When the gas inside the intake assembly (3) flows into the self-suction mechanism (4), the suction end draws the blow-by gas from the crankcase cavity into the self-suction mechanism (4) and discharges it into the intake pipe.

2. An integrated cylinder head cover as described in claim 1, characterized in that, A connecting cover (5) is installed on the cylinder top cover (1), and a wind cavity (6) is formed between the connecting cover (5) and the cylinder top cover (1). When the cylinder top cover (1) is installed on the turbocharged engine, the wind cavity (6) is connected to the crankcase. The self-suction mechanism (4) is installed on the connecting cover (5) and the suction end is connected to the wind cavity (6).

3. An integrated cylinder head cover as described in claim 2, characterized in that, The self-suction mechanism (4) includes a mounting base (401) installed on the connecting cover (5). The mounting base (401) has a suction hole (402) that communicates with the air chamber (6). The mounting base (401) has an air inlet hole (403) that communicates with one end of the suction hole (402). One end of the air inlet hole (403) is connected to a connecting pipe (404) that communicates with the air intake assembly (3). The other end of the air inlet hole (403) is connected to the air intake pipe. When high-pressure gas passes through the air inlet hole (403), the suction hole (402) generates suction to draw out the gas in the air chamber (6).

4. An integrated cylinder head cover as described in claim 3, characterized in that, The air inlet (403) includes a socket (4031) formed on the mounting base (401). One end of the connecting pipe (404) is installed on the socket (4031). The mounting base (401) has a tapered conical opening (4032) coaxially connected to one end of the socket (4031). The end of the mounting base (401) away from the socket (4031) has a tapered opening (4033) coaxial with the tapered conical opening (4032). The mounting base (401) has... A narrow hole (4034) is coaxially connected with the conical orifice (4032) and the conical orifice (4033). The inner diameter of the narrow hole (4034) is smaller than the minimum inner diameter of the conical orifice (4032) and the conical orifice (4033). The narrow hole (4034) is smoothly connected with the conical orifice (4032) and the conical orifice (4033) to form a funnel shape at the connection between the narrow hole (4034) and the corresponding pipe. One end of the suction hole (402) is connected to the inner circumference of the narrow hole (4034).

5. An integrated cylinder head cover as described in claim 4, characterized in that, The mounting base (401) is connected to a mounting cylinder (7) that communicates with a conical hole (4033). An oil-gas separation component (8) is installed inside the mounting cylinder (7). The connecting end of the mounting cylinder (7) is used to communicate with the air inlet pipe. The mixed gas discharged from the conical hole (4033) passes through the oil-gas separation component (8) to discharge the separated gas into the air inlet pipe.

6. An integrated cylinder head cover as described in claim 5, characterized in that, The mounting cylinder (7) is vertical and has a connecting end at the top. The oil-gas separation assembly (8) includes an oil supply pipe (801) connected to the bottom end of the mounting cylinder (7). One end of the oil supply pipe (801) is used to connect to the turbocharger oil tank. A conversion cylinder (802) with one side connected to a tapered hole (4033) is installed inside the mounting cylinder (7). The bottom of the conversion cylinder (802) is open and its outer periphery forms an annular cavity (806) with the inner periphery of the mounting cylinder (7). A spiral plate (807) is constructed inside the annular cavity (806). The conversion cylinder (802) has a vertically rotating rotating tube (803) with a hollow interior and an open top at the bottom opening. The outer periphery of the rotating tube (803) is connected to an arc-shaped wind plate (804). The arc-shaped wind plate (804) has an air chamber (805) that communicates with the rotating tube (803) inside. Multiple exhaust holes (808) are evenly opened at one end of the arc-shaped wind plate (804) away from the axis of the rotating tube (803). The conversion cylinder (802) is equipped with a driving component (9) for driving the rotating tube (803) to rotate.

7. An integrated cylinder head cover as described in claim 6, characterized in that, An opening and closing component (10) is provided at the connection between the oil pipeline (801) and the mounting cylinder (7). When the rotating pipe (803) rotates, the opening and closing component (10) blocks the connection between the oil pipeline (801) and the mounting cylinder (7). When the rotating pipe (803) stops rotating, the opening and closing component (10) keeps the oil pipeline (801) and the mounting cylinder (7) connected.

8. An integrated cylinder head cover as described in claim 7, characterized in that, The opening and closing assembly (10) includes a connecting frame (1001) installed inside the oil pipeline (801). A frustum-shaped sealing block (1002) is elastically and vertically slidably installed inside the connecting frame (1001). The inclined surface of the sealing block (1002) contacts the connection between the oil pipeline (801) and the mounting cylinder (7). A setting cavity (1003) is constructed inside the sealing block (1002). A ring is coaxially constructed on the bottom surface of the setting cavity (1003). The annular plate (1004) has a forcing inclined surface (1005) on its inner circumference. The setting cavity (1003) has a reserved cavity (1006) along the lower edge of the forcing inclined surface (1005). The rotating tube (803) has an L-shaped forcing frame plate (1007) slidably mounted in a circular array at its bottom end. The horizontal free end of the forcing frame plate (1007) is an inclined surface, which is used to contact the forcing inclined surface (1005).

9. An integrated cylinder head cover as described in claim 5, characterized in that, The connecting cover (5) has a through groove (11) on one side that communicates with the air cavity (6). The bottom surface of the air cavity (6) is an inclined surface (12), and the lowest end of the inclined surface (12) is connected to the through groove (11). A collection box (13) with an open top is installed in the through groove (11). The mounting base (401) has an insertion cavity (14) that communicates with the suction hole (402). A filter screen (15) is detachably inserted into the insertion cavity (14).

10. An integrated cylinder head cover as described in claim 4, characterized in that, The air intake assembly (3) includes a shut-off valve (301) connected to the outer periphery of the connecting pipe (2), one end of the shut-off valve (301) is connected to an air supply pipe (302), and the free end of the air supply pipe (302) is connected to one end of the connecting pipe (404).

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